Our study adds to the understanding of dental caries prevention in underserved populations. Dental caries is the most common disease of childhood but can be easily prevented. It is therefore essential that policy makers use evidence to promote policies that will help reduce the burden of caries in high-risk children. We collected socioeconomic and demographic data through written surveys from parents of children at the Lyford Consolidated Independent School District in Willacy County. We got a 60% response to our survey. The survey data was matched with dental examination data from a teledentistry project. Only 19% of children in our matched sample had any sealant but 43% had at least one dental caries. Of those without sealants, almost half (49%) had caries while of those with sealants only 19% had any caries. We also found that while half (48%) of those from low-income households (ie, annual incometypes of dental clinics: fixed, mobile, and portable.74 The Manual gives detailed
cost for equipment, operating expenses, and personnel. The start up cost for a
portable clinic is only around $42, 000 as compared to $400, 000 and $560, 000
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